Just like Frankie’s ligament, I was also torn. I didn’t want to subject him to an unnecessary surgery, a recovery that required weeks of inactivity and cost thousands of dollars.

Frankie was racing down the small hill in the backyard when he yelped and lifted his hind leg close to his body.

Allows bending (flexion) and straightening (extension). Muscles which move the knee are quadriceps and hamstrings. Ball and socket joint. Articulating bones are humerus and scapula (the clavicle ...

The take-off knee extends when a high-jumper takes off (the other knee is flexed). Ball and socket joints also allow flexion and extension. Flexion of the shoulder joint occurs when the humerus ...